Hunting and Sporting Firearm
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[0018]With reference to FIGS. 1 and 2, the numeral 1 denotes in its entirety an over-and-under firearm comprising a pair of barrels 2 (partially illustrated), and a stock 3 (partially illustrated), between which there is a rolling block 4 to which the barrels 2 are pivoted by means of a hinge pin 5.
[0019]The numeral 6 denotes a cavity in the rolling block 4, designed to accommodate a snap action mechanism 7 comprising, for each barrel 2, an action 8 which, upon being actuated by a trigger 9, causes a respective firing pin 10 associated with each barrel 2 to impact the case of a cartridge (not illustrated).
[0020]Each firing pin 10 consists of a substantially cylindrical rod 11 having a rim 11a at an intermediate position of it and housed in a through hole 12 made in a transversal wall 13 separating the cavity 6 from the respective barrel 2. Positioned around each firing pin 10 and abutting against the rim 11a there is a helical spring 14 for retracting the firing pin 10 into the cavi...
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